<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:swes="http://www.opengis.net/swes/2.0" xmlns:swe="http://www.opengis.net/swe/2.0" xmlns:sos="http://www.opengis.net/sos/2.0" targetNamespace="http://www.opengis.net/sos/2.0" elementFormDefault="qualified" attributeFormDefault="unqualified" version="2.0.0">
	<annotation>
		<documentation>			
			SOS is an OGC Standard.
			Copyright (c) 2012 Open Geospatial Consortium.
			To obtain additional rights of use, visit http://www.opengeospatial.org/legal/ .
		</documentation>
	</annotation>
	<import namespace="http://www.opengis.net/gml/3.2" schemaLocation="../../gml/3.2.1/gml.xsd"/>
	<import namespace="http://www.opengis.net/swe/2.0" schemaLocation="../../sweCommon/2.0/swe.xsd"/>
	<import namespace="http://www.opengis.net/swes/2.0" schemaLocation="../../swes/2.0/swes.xsd"/>
	<!-- ================================================= -->
	<element name="ObservationOffering" type="sos:ObservationOfferingType" substitutionGroup="swes:AbstractOffering">
		<annotation>
			<documentation>groups collections of observations produced by one procedure, e.g., a sensor system. The ObservationOffering lists the basic metadata for the associated observations including the observed properties of the observations. An observation may belong to more than one ObservationOffering</documentation>
		</annotation>
	</element>
	<complexType name="ObservationOfferingType">
		<complexContent>
			<extension base="swes:AbstractOfferingType">
				<sequence>
					<element name="observedArea" minOccurs="0">
						<annotation>
							<documentation>spatial bounding box of the spatial extent of all features of interest that belong to observations associated with the offering</documentation>
						</annotation>
						<complexType>
							<sequence>
								<element ref="gml:Envelope"/>
							</sequence>
						</complexType>
					</element>
					<element name="phenomenonTime" minOccurs="0">
						<annotation>
							<documentation>temporal bounding box of the phenomenon times of all observations belonging to the offering</documentation>
						</annotation>
						<complexType>
							<sequence>
								<element ref="gml:TimePeriod"/>
							</sequence>
						</complexType>
					</element>
					<element name="resultTime" minOccurs="0">
						<annotation>
							<documentation>temporal bounding box of the result times of all observations belonging to the offering</documentation>
						</annotation>
						<complexType>
							<sequence>
								<element ref="gml:TimePeriod"/>
							</sequence>
						</complexType>
					</element>
					<element name="responseFormat" type="anyURI" minOccurs="0" maxOccurs="unbounded">
						<annotation>
							<documentation>identifies the response format supported for observation retrieval</documentation>
						</annotation>
					</element>
					<element name="observationType" type="anyURI" minOccurs="0" maxOccurs="unbounded">
						<annotation>
							<appinfo>
								<gml:targetElement>sos:ValueCode</gml:targetElement>
							</appinfo>
							<documentation>identifies the type of observation (with unique result type) which is used by the service to encode observations</documentation>
						</annotation>
					</element>
					<element name="featureOfInterestType" type="anyURI" minOccurs="0" maxOccurs="unbounded">
						<annotation>
							<appinfo>
								<gml:targetElement>sos:ValueCode</gml:targetElement>
							</appinfo>
							<documentation>identifies the type of features of interest associated with the observations provided by the service</documentation>
						</annotation>
					</element>
				</sequence>
			</extension>
		</complexContent>
	</complexType>
	<complexType name="ObservationOfferingPropertyType">
		<sequence minOccurs="0">
			<element ref="sos:ObservationOffering"/>
		</sequence>
		<attributeGroup ref="gml:AssociationAttributeGroup"/>
	</complexType>
	<!-- ================================================= -->
	<element name="Contents" type="sos:ContentsType" substitutionGroup="swes:AbstractContents">
		<annotation>
			<documentation>describes the data offered by an SOS server</documentation>
		</annotation>
	</element>
	<complexType name="ContentsType">
		<complexContent>
			<extension base="swes:AbstractContentsType">
				<sequence>
					<element name="responseFormat" type="anyURI" minOccurs="0" maxOccurs="unbounded">
						<annotation>
							<documentation>identifies the response format supported for observation retrieval</documentation>
						</annotation>
					</element>
					<element name="observationType" type="anyURI" minOccurs="0" maxOccurs="unbounded">
						<annotation>
							<appinfo>
								<gml:targetElement>sos:ValueCode</gml:targetElement>
							</appinfo>
							<documentation>identifies the type of observation (with unique result type) which is used by the service to encode observations</documentation>
						</annotation>
					</element>
					<element name="featureOfInterestType" type="anyURI" minOccurs="0" maxOccurs="unbounded">
						<annotation>
							<appinfo>
								<gml:targetElement>sos:ValueCode</gml:targetElement>
							</appinfo>
							<documentation>identifies the type of features of interest associated with the observations provided by the service</documentation>
						</annotation>
					</element>
				</sequence>
			</extension>
		</complexContent>
	</complexType>
	<complexType name="ContentsPropertyType">
		<sequence minOccurs="0">
			<element ref="sos:Contents"/>
		</sequence>
		<attributeGroup ref="gml:AssociationAttributeGroup"/>
	</complexType>
</schema>
